Steam-boiler



M. TRUMBLE.

STEAM BOILER.

APPLICATION man rsa. la, ma.

1,322,374. Paten-ted Nov. 18, 191'9.

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STEAM-BOILER.

Specification of Letters Patent. Patented NOV. 1S, 1919.

Application led February 18, 1919. Serial No. 277,881.

g Referring to the drawings which are for illustrative purposes only,

Figure l is` an elevation partly in section showing one embodiment of myinvention.

Fig. 2 is a section on a plane represented by the line 2 2 of Fig. 1.

Fig. 3 is an enlarged section of the headers and tubes, and

Fig. 4 is a diagram showing the 1nternalconnection of the boiler. f Inthe form of the invention illustrated, a jacket 11 is provided, thisjacket having a top 12 and a bottom 13. An inlet cylin-V der 14 isinserted and secured in a central opening in the top 12, through whichthe air of combustion'for the boiler enters. Located concentricallyinside the jacket 11 is a shell 15 which has a tight top\16 and a bot-`tom.17 having a central opening 181 therein. Projecting through thebottom 13'inside the central opening 18 is a burner 20 which may haveany convenient form and which may be fed with any suitable type of fuelsuch as oil or gas.

Secured to the bottom 17 are bafiles 21 and 22 and secured to the top 16is a bathe 23. The space between the bale 22 and the shell 15communicates with a flue (not shown) through a tube 25. A central tube26 is secured in the top 16, having a delicotor 27 therein, the interiorof this deflector being in open communication with a steam pipe 28leading to the engine. Located in the space between the shell 15 and thebaille 22 is a series of primary tubes 30 each of which connects into anupper header 31, andY a lower header 32. Located between the baiiies 22and 23 is a secondary series of nect into an upper header 41 and a lowerheader 42. Located inside the bafile 21 and surrounding the tube 26 is aquartenary set of tubes 45 each of which connect into an upper header 46and a lower header 47. A plurality of cross over tubes `50 are providedeach of which is connected as shown in Fig. 3, each of these tubesextending up through a tube 51 into an upper header 52 and connectinginto a lower header 53 of the next seriesof tubes countinginwardly.

Themethod of connecting the cross over tubes 50 is shown in Fig. 4. -Thelower header 32 is connected by a water supply pipe 6() with any sourceof water supply.

"The upper header 31 is connected by means of cross over tubes 61 withlower header 37. The upper header36 is connected through cross overtubes 62 with the lower header 42. The upper header 41 is connectedthrough cross over tubes 63 with the lower header 47 and the upperheader 46 isconnected through a hot water pipe 64 with the space betweenthe members 26 and 27. The tubes 61, 62 and 63 are similar inconstruction to the tube 50 illustrated in Fig. 3.

The method of operation is as follows:

- Water being admitted through the pipe 60 passes into the lower header32,' upwardlythrough the tubes 30 into the header-31 and downwardlythrough the cross over tubes- 61 to the lower header V37, passingupwardly through the tubes 35 to the upper header 36, through the crossover tubes 62 to the lower header 42, through the tubes 40 to the upperheader 41, from the upper header 41 through the tubes 63 to the lowerheader 47, through the tubes 45 to the upper header 46 and through thetubes 64 into the space between the members 26 and 27. The al? readyAhighly heated water is then passed ing upwardly through the steam pipe28. The fire from the burner 20 is directly under the member 26 and isin direct contact with the tubes 45. The gases of combustion passingVoutwardly lpass downwardly between the vbames 21 and 22, upwardlybetween the battles 22 and 23 and downwardly between the baffles 23 andthe shell 15. being'nally withdrawn through the tube 25.

It will be seen thatv the hot liquid rises through the individual tubes51,. the hot vliquid being taken ofi'l from the eXtreme top of theheaders 52 and delivered to the bottom of any succeeding header`53, themembers 50, 51, 52 and 53 being typical of the members numbered from 31to 64 inclusive and not designating any particular tube or tubes. Thewater in its passage passes upwardly in the tubes 30, 35, 40 and 45 andpasses from the circumference toward the center of the boiler. The hotgases on the other hand pass in a tortuous passage radially outwardthrough the boiler so that the entering water meets the gases of lowesttemperature and the steam is produced 'by direct application of the heatto the meinber 26 and the tubes l0 and 45.

l. A steam boiler comprising walls forming a series of concentriccompartments, an u'pper header in each compartment, a lower header ineach compartment, a series of water tubes in each compartment each tubeconnected at one end into one of said upper headers and at the other endinto one of said lower headers, a water supply pipe connected into thelower header of the outer compartment, a hot water pipe connected intothe upper header of the innermost compartment, cross over pipesconnecting each of said upper headers except the innermost with thelowerheader in the next inner compartment, and means for introducing hotgases into the lower portion of the inner most compartment.

2. A steam boiler comprising walls forming a series of concentriccompartments, an upper header in each compartment, a lower header ineach compartment, a series of water tubes in each compartment each tubeconnected at one end into one of said upper headers and at the other endinto one of said lower headers,- a water supply pipe connected into thelower header of the outer compartment, a hot water pipe connected intothe upper header of the innermost compartment, cross over-pipesconnecting each of said upper headers except the innermost with thelower header in the next inner compartment, a central tube having atight` connected at one end into one of said -upper headers and at theother end into one of said lower headers, a water supply pipe conintothe upper header of the innermost compartment, cross over pipesconnecting each of said upper headers except the innermost with thelower header in the next inner compartment, each` of said cross overtubes passing through one of said water tubes intothe upper header intowhich said water tube connects, and means for introducing hot gases intothe lower portion of the innermost compartment.

4. A steam boiler comprising walls forming a series of concentriccompartments, an upper header in each compartment, a lower header ineach compartment, a series of water tubes in each compartment each tubeconnected at one end' into one of said upper headers and at the otherend into one of said lower headers, a water supply pipe connected intothe lower header of the outer compartment, a hot water pipe connectedinto the upper header of the innermost compartment, cross over pipesconnecting each of said upper headers except the innermost with thelower header in the next' inner compartment, each of said cross overtubes passing through one of said water tubes into the upper header intowhich said water tube connects, a central tube having a tight bottom andcentrally located in said innermost compartment, a deflector in saidtube, said hot water pipe being connected into said central rtubeoutside said delector, a steam pipe connected to said central tube, and`means for introducing hot gases into the lower portion of the innermostcompartment.

5. A steam boiler comprising walls forming a series of concentriccompartments, a jacket surrounding said walls to form a preheating spacethrough which the air of combustion is drawn, an-upper header in eachcompartment, a lower header in each compartment, a series of water tubesin each compartment each tube connected at onevend into one of saidupper headers and at the other end into one of said lower headers, awater supply pipe connected into the lower header of the outercompartment, a hot water pipe connected into the upper header of theinnermost compartment, cross over pipes connecting each of said upperheaders except the innermost with the lower header in the next innercompartment, and means for introducing hot gases into the lower portionof the innermost compartment.

6. A steam boiler comprising walls forming a series of concentriccompartments, a jacket surrounding said walls to form a preheating spacethrough which the air of combustion is-drawn, an upper header in eachcompartment, a lower header in each compartment, a series of water tubesin each compartment each tube connected at one end into one of saidupper headers and at thc other end into one of said lower headers. a

.cated in said innermost comparment, a deflector in said tube, said hotwater pipe being connected into said central tube outside said delector,a steam pipe connected to said central tube, and means for introducinghot gases into the lower portion of the innermost compartment.

7'. A steam boiler comprising walls forming a series of concentriccompartments, a jacket surrounding said walls to form a preheating spacethrough which the air of combustion is drawn, an upper header in eachcompartment, a lower header in each compartment, a series of water tubesin leach compartment each tube connected at one end into one 'of saidupper headers and at the other end into one of said lower headers, awater supply pipe connected into the lower header of the outercompartment, a 'hot water pipe connected into the upper header of theinnermost compartment, cross over pipes connectingI each of said upperheaders except the innermost with the lower header in the next innercompartment, each of said cross over tubes passing through one` of saidwater tubes into the upper header into which said water tube connects,and means for introducing hot gates into the lower portion of the`innermost compartment.

8. A steam boiler comprising walls forming a series of concentriccompartments, a jacket surrounding said walls to form a preheatingspa-ce through which. the air of coma water supply pipe connected intothe lower` header of the outer compartment, a hot water pipe connectedinto the upper header of the innermost compartment, cross over pipesconnecting each of said upper headers except the innermost with thelower header in the next inner compartment, each of said cross overtubes passing through one of said water tubes into the upper header intowhich said water tube connects, a central tube having a tight bottom andcentrally located in said innermost compartment, a deiector in saidtube, said hot waterl pipe being connected into said central tubeoutside said deiector, a steam pipe connected to said central tube, andmeans for introducing hot gases into the lower portion of the innermostcompartment.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 10th day of February, 1919.

MILON J. TRUMBLE.

